FLUX.2-klein-4b-fp8
black-forest-labs/FLUX.2-klein-4b-fp8
Official · FP8 · unknown
| Precision / quantization | Format | Bits | Publisher trust | Deployment state |
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FLUX · General · flux-2-klein-4b
FLUX.2-klein-4b-fp8: Specs, GPU requirements, hosting & deployment
FLUX.2-klein-4b-fp8 is a recent Image Generation release in the FLUX family, certified from its immutable official source revision.
Reference only
Compare this model
Total parametersNot published by manufacturer
Active parametersN/A / Not directly comparable
Context windowN/A / Not directly comparable
Release statusRecent · Recent
Architecture
ModalitiesImage
Licenseapache-2.0
Deployment stateReference only
Commercial stateCommercial Use Allowed
Release date
Architecture, strengths and use cases
FLUX.2-klein-4b-fp8 is an official self-hostable Black Forest Labs Image generation release. It uses Not published by manufacturer with Not published by manufacturer. Exact checkpoint, license, runtime, and hardware evidence is tied to the verified upstream revision.
FLUX.2-klein-4b-fp8 uses Not published by manufacturer with Not published by manufacturer. Pipeline and configuration fields are reported only where the official source publishes them.
Verified Not published by manufacturer architecture
Official checkpoint and pipeline evidence
Official FP8 checkpoint coverage
Self-hosted Image generation workloads
Controlled model evaluation
Production deployment planning
Certified checkpoints and quantizations
Only exact, source-certified variants attached to this release are shown.
Recommended hardware
Use only the listed runtime configurations with the exact checkpoint precision. Hardware sizing considers resident pipeline memory, runtime overhead, input and output dimensions, batch size, and safety headroom.
Reference only
The official license permits commercial use; its obligations still apply.
License and self-hosting considerations
The exact pipeline and selected precision must fit on the chosen GPUs. Requirements vary with resolution, duration, batch size, modalities, and runtime; language-model KV-cache rules are not applied.
FLUX.2-klein-4b-fp8 is published under apache-2.0. The release-scoped official license link and verification date are retained with the catalogue record.
Commercial Use Allowed. The official license permits commercial use; its obligations still apply.
Alternatives and sibling variants
FLUX.2-klein-9B, FLUX.2-dev, FLUX.2-klein-9b-fp8, FLUX.2-klein-9b-nvfp4, FLUX.2-klein-4b-nvfp4, FLUX.2-dev-NVFP4, FLUX.2 Klein 4B, FLUX.2 Klein 9B
Release timeline
black-forest-labs/flux/flux2-klein-4b-fp8 @ 8380ef0173cf338920d0d23042e74a9e62bc3268be862bd17636f79086e95ca8
black-forest-labs/FLUX.2-klein-4b-fp8 @ 2026-02-24T13:01:26Z
Frequently asked questions
How much VRAM does FLUX.2-klein-4b-fp8 require?
The estimate uses the certified checkpoint, precision, runtime, workload dimensions, batch size, and domain-specific overhead.
Which runtimes support FLUX.2-klein-4b-fp8?
No runtime is presented as supported until upstream evidence is verified.
Can FLUX.2-klein-4b-fp8 be used commercially?
The stored commercial classification is Commercial Use Allowed. Consult the official apache-2.0 terms for the final obligations.
Official references
Last verified: 2026-09-04